package java_01_20201028;

public class zuoye9 {
public static void main(String[] args) {
	int a=70;
	int b=a/10;
	
	switch(b) {
	case 10 :
		System.out.println("A");
		break;
	case 9 :
		System.out.println("A");
		break;
	case 8 :
		System.out.println("B");
		break;
	case 7 :
		System.out.println("c");
		break;
	case 6 :
		System.out.println("d");
		break;
	default:
		System.out.println("e");
	}
	
	
	
}
}
